28076838056 has 8 divisors (see below), whose sum is σ = 52644071370. Its totient is φ = 14038419024.

The previous prime is 28076838037. The next prime is 28076838071. The reversal of 28076838056 is 65083867082.

It can be written as a sum of positive squares in only one way, i.e., 27965872900 + 110965156 = 167230^2 + 10534^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 28076837989 and 28076838007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1754802371 + ... + 1754802386.

Almost surely, 2^28076838056 is an apocalyptic number.

It is an amenable number.

28076838056 is a deficient number, since it is larger than the sum of its proper divisors (24567233314).

28076838056 is a wasteful number, since it uses less digits than its factorization.

28076838056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3509604763 (or 3509604759 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 28076838056 in words is "twenty-eight billion, seventy-six million, eight hundred thirty-eight thousand, fifty-six".